Drawing-support.



W. ALLEN DRAWING SUPPORT.

APPLICATION FILED MAY 22, 1897.

Patented Mar. 31, 1914.

COLUMBIA PLANOuRAPH co.. WASHINGTON, D. c.

WALTER ALLEN, OF W'ASHINGTON, DISTRICT OF COLUMBIA.

DRAWING-SUPPORT.

Application filed May 22, 1897.

Specification of Letters latent.

Patented Mar. 31, 1914.

Serial No. 637,744.

To all whom it may concern Be it known that I, WALTER ALLEN, a citizen of the United States of America, and a resident of the city of \Nashington, in the District of Columbia, have invented certain new and useful Improvements in Drawing- Supports, of which the following is a specification.

My invention relates toa drawing support adapted to provide a drawing holder, carrier, and sun-print frame for the use of draftsmen, specification writers, patent attorneys, official examiners, or others desiring a temporary support for, drawings, which support may have upon one side a flat surface suitable for supporting a sheet of material for the making of drawings, and upon the other side, means whereby one or more sheets of drawings may be readily and loosely secured thereto to protect the sheets (which are turned with their faces inward for carrying them from place to place), copied therefrom, kept fiat, set up, and handled Or carried, and corrections or changes noted thereon, and sun prints made thereof, without the liability of the drawings sustaining irreparable injury while they are in use.

'My invention has for its object to provide an ordinary drawing board with a simple construction of holder, or frame, for the preservation of drawings while being copied, described, or examined and thus avoid the disfigurement, mutilation or destruction of the same while in use, which is the cause of much annoyance to inventors and attorneys in delaying the prosecution and consideration of applications, which are consequently held up for the drawings to be rendered acceptable to those who have to pass upon them under certain rules, besides being the cause of considerable additional expense in putting them into proper condition for copying by photolithographic, blue print or other processes.

My improvement consists in a drawing support having a ledge or batten formed with a retaining groove or channel adapted to provide a drawing holder, carrier, and sun-print frame for the useful purpose stated, as well as for other useful purposes comprising novel features of construction as hereinafter described and claimed.

In order that my invention may be fully understood, I will proceed to describe it sun-printing.

with reference to the accompanying drawing, in which- Figure 1 is a perspective view of my improved drawing support having groove ledges or battens and constructed to hold a single sheet of drawing and, as indicated in dotted lines, to hold two additional sheets of drawing at opposite edges. Fig. 2 is a longitudinal section thereof. Fig. 3 is a perspective view of my improved drawing support having grooved ledges or battens and constructed to hold three sheets of drawing and, as indicated in dotted lines, to hold two additional sheets of drawing at opposite edges. Fig. 1 is a perspective view of my improved drawing support having grooved ledges or battens and constructed to hold two sheets of drawing where the figures thereon extend lengthwise of the sheet, and, as indicated in dotted lines, to hold from opposite edges thereof two additional sheets of drawing where the drawings thereon also extend lengthwise of the sheet. Fig. 5 is a perspective view of my improved drawing support having grooved ledges or battens and formed of a single piece of material. Fig. 6 is a longitudinal section of the same on a line with the retain: ing pin points. Fig. 7 is a perspective view of my improved drawing support, the upper grooved ledge or batten being omitted and two sheet-holding bands being shown in dotted lines. Fig. 8 is a longitudinal section of the same arranged with the printing, drawing and glass sheets in position for Fig. 9 is a side elevation of my improved (drawing support provided with a back prop in the form of a hinged stay or leg. Fig. 10 is a detail side elevation on a much larger scale, of the lower end of my drawing support showing a board or plate having a dark surface and the printing, drawing, and glass sheets for sunprinting in position and the blackened ground edge of the glass sheet.

My drawing support may be made of wood, heavy cardboard, straw-b0ard, hard rubber, sheet metal or of any other suitable material or metal, and when used as aholder. is set up against any convenient object which may be utilized as a back prop. It is constructed with a board or plate 1 having a flat drawing surface 1 and grooved or channeled ledges or battens 2, for retaining the drawing sheets, located at one or more edges thereof; the retaining grooves or channels 3 of which are adapted to receive the edges of the drawing sheets 4;. These drawing supports are generally made of such a size as to receive and hold drawing sheets of U. S. standard size, 15 bylO inches, used in applications for Letters Patent. Figs. 1, 2, 5, 6, 7, 8 and 9 show supports which are adapted to receive one of such drawing sheets, set on end. Fig. 3 shows a support for two or more sheets of drawing set on end, while Fig. 4 shows a support for one or more drawing sheets where the figures thereon are arranged lengthwise of the sheet. Each ledge or batten may be formed with beveled or inclined bearing or footing 5, as shown in Figs. 2, 7, 8, 9 and 10, so that when the support is set up against a suitable object, whereby it is propped, it may have a broad fiat base to sustain it in the desired slightly inclined position.

To fix the support in position when set up so" as to be used as a holder, I provide a base With sharp projections in the form of small retaining pin points 6 which depress or penetrate, slightly, the cloth or other surface upon which the support is I placed and thus hold the support from movement.

Where wood or analogous material is employed in the manufacture of the article, I insert small pin points in the base, but where the support is made of one piece of sheet metal, as shown in Fig. 5,'I punch or strike up small retaining pin points fi from the ledge or batten 2*. When it is not convenient to utilize an object as a back prop, I provide a brace in the form of a hinged stay or leg 7 having a retaining pin point 6 and secured at one edge of the drawing surface 1 so as not to interfere therewith when released and thrown to one side. By the employment of the retaining pin points the support is held from movement while the drawing sheet is in use, as it will not move under the usual pressure brought to bear thereon when writing upon or letter ing or indicating corrections upon the drawlng. Where the support is provided with grooved ledges or battens and pin points at the opposite edges thereof, the position of the support can be readily turned end for end at t-he'will of the user. The support, while it can be used for the purposes of drawing or sun-printing, will be found very convenient for carrying drawings located thereon from one place to another, thus avoiding any liability of injury to the drawing, as the drawings may be turned with their faces inward during transit.

l/Vhen the support is used for sun-printing, I use a heavy plate of glass 8, which may have ground edges 8*. These ground edges may be covered with a coat of paint 9 to darken the edges.

The support may also have a dark surface, which may be in the form of a coat of paint or a carbon sheet located against it.

11 represents the sun-print sheet.

For securing the sheet to the support, I

may employ elastic bands 12 which sur-' round the support. 7

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

A drawing support adapted to provide a holder, carrier or sun-print frame for a drawing-sheet comprising a plate formed in one piece, with a ledge or batten having a retaining groove for receiving an edge of p the drawing-sheet and a bearing or footing and retalnlng pln points struck out from the ledge or from beneath the bearing or footing.

WALTER ALLEN.

I Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, I). C.

batten and projecting slightly. 

